Table 2.
Results of univariate analyses
| Variable | No. of patients (%) | P value | |||
|---|---|---|---|---|---|
| Abdominal wound dehiscence group (n = 63) | Control group (n = 252) | ||||
| Age (year) median ± SD, range | 0.2 ± 3.9 | (2–17.4 days) | 1.1 ± 5.5 | (0–17.7 days) | <0.001a |
| 0–6 weeks | 19 | 30% | 52 | 21% | |
| 6 weeks–1 year | 35 | 56% | 71 | 28% | |
| >1 year | 9 | 14% | 129 | 51% | |
| Male/female ratio | 38/25 | 60%/40% | 142/110 | 56%/44% | 0.569 |
| Diabetes mellitus | 0 | 0% | 2 | 1% | 0.639 |
| Pulmonary disease | 11 | 18% | 31 | 12% | 0.281 |
| Corticosteroid use | 3 | 5% | 12 | 5% | 0.649 |
| Malignancy | 1 | 2% | 25 | 10% | 0.032 |
| Ascites | 5 | 8% | 15 | 6% | 0.563 |
| Previous laparotomy | 10 | 16% | 61 | 24% | 0.157 |
| Anemia | 19 | 30% | 75 | 30% | 0.829 |
| Jaundice | 13 | 21% | 14 | 6% | <0.001 |
| Sepsis | 9 | 14% | 17 | 7% | 0.052 |
| Necrotizing enterocolitis | 9 | 14% | 7 | 3% | <0.001 |
| Hypertrophic pyloric stenosis | 16 | 25% | 25 | 10% | 0.001 |
| Emergency surgery | 42 | 67% | 124 | 50% | 0.013 |
| Type of surgery | 0.015a | ||||
| Abdominal wall | 13 | 21% | 65 | 26% | |
| Stomach-pylorus | 16 | 25% | 29 | 12% | |
| Small bowel | 14 | 22% | 29 | 12% | |
| Large bowel | 16 | 25% | 94 | 37% | |
| Gall bladder/bile duct/liver | 3 | 5% | 12 | 5% | |
| Kidney/adrenal gland | 1 | 2% | 20 | 8% | |
| Otherb | 0 | 0% | 3 | 1% | |
| Type of incision | 0.002a | ||||
| Transverse | 36 | 57% | 101 | 40% | |
| Midline | 15 | 24% | 38 | 15% | |
| Semilunar (umbilical) | 5 | 8% | 14 | 6% | |
| Subcostal | 2 | 3% | 14 | 6% | |
| McBurney | 0 | 0% | 50 | 20% | |
| Lumbotomy | 0 | 0% | 2 | 1% | |
| Unknown | 5 | 8% | 33 | 13% | |
| Operation time (min), median ± SD | 65 ± 103 | (20–600) | 75 ± 83 | (15–550) | 0.665 |
| Coughing | 3 | 5% | 7 | 3% | 0.425 |
| Vomiting | 5 | 8% | 17 | 7% | 0.782 |
| Wound infection | 15 | 24% | 18 | 7% | <0.001 |
aOverall p value
bOther: 2 splenectomies, 1 vascular procedure